Ken Griffin's firm is seeking around $40 million over claims a British hedge fund obtained a secret trading strategy from a senior trader at Citadel Securities. Gift Article 10 Remaining As a ...

Citadel Securities reached a truce with a British hedge fund manager over the attempted hiring of a senior trader, ending a lawsuit that was set to consider the makeup of a secret algorithm. Kenneth C ...

SEOUL, Jan 27 (Reuters) - South Korea's financial regulator has imposed a fine of 11.88 billion won ($9.66 million) on U.S.-based Citadel Securities, saying it disturbed the local stock market with ...